I had a very suspicious 2v2 series a few weeks ago where in 4 out of the 6 games, I found one of my miners AFK. I do not make mistakes like that very often, so to me, 4 out of 6 games was alarming. I was not convinced but I heard about the unit control hack being out there.
That being said, recently I have been conscious of who im playing and what happens to my miners in game. I had a recent set of games with SiR Alex-- the person who created the Psychicc radar hack. In these games I was very aware of the possibility that one of my miners might be going afk for no reason, so I kept checking them. And low and behold in game 3 I found myself low on funds and checked my miners. One of them somehow managed to go AFK despite my intense care and 300 APM.... I clicked the miner and put it back on gems where it should have been. 'Nice try alex' I thought to myself, thinking im slick. At that moment, I made a mental note that this was the last time I touched any of my miners. But, just a minute or so later I found myself unbearably low on funds. I immediately sold my conyard so I wouldn't die and checked my miners and.... not one of them but TWO of them were afk.
*****The follow up game was even more suspicious.
I don't know if Alex created the hack, hell, I don't even know if the hack exists. But what I do know is that I have never seen such witchcraft in 400 trillion games.